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URL: https://oeis.org/A164994

⇱ A164994 - OEIS

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A164994
a(n) = A164993(n)/2.
9
0, 0, 0, 1, 0, 1, 2, 1, 0, 4, 4, 8, 4, 0, 4, 8, 4, 4, 8, 8, 8, 8, 4, 4, 8, 4, 0, 13, 16, 29, 16, 13, 26, 29, 26, 29, 16, 13, 26, 13, 0, 13, 26, 13, 16, 29, 26, 29, 26, 13, 16, 29, 16, 13, 26, 29, 32, 29, 26, 29, 32, 29, 26, 29, 26, 29, 26, 13, 16, 29, 16, 13, 32, 29, 26, 29, 16, 13, 26
OFFSET
0,7
MATHEMATICA
A164994[n_] := (FromDigits[ReverseSort[#], 3] - FromDigits[Sort[#], 3] & [IntegerDigits[n, 3]])/2;
Array[A164994, 100, 0] (* Paolo Xausa, Jan 24 2026 *)
CROSSREFS
Cf. A164993.
In other bases: A164884 (base 2), A165013 (base 4), A165033 (base 5), A165052 (base 6), A165072 (base 7), A165091 (base 8), A165111 (base 9), A151950 (base 10).
Sequence in context: A066426 A100887 A073592 * A394385 A269952 A361954
KEYWORD
base,nonn
AUTHOR
Joseph Myers, Sep 04 2009
STATUS
approved